阅读说明：本技术 一种听诊器检测设备及一种听诊器检测方法 (Stethoscope detection device and stethoscope detection method ) 是由 王皓 杨红光 黄毅新 余展文 于 2021-10-13 设计创作，主要内容包括：本发明公开了一种听诊器检测设备,其特征在于：包括：人工嘴,用于向听诊器探头输入声音；人工耳,用于从听诊器耳塞接收声音并将声音信号发送至音频分析仪；音频分析仪,与所述人工嘴和人工耳数据连接,用于接收人工耳输出的声音信号并进行音频分析得出声压级和失真率；显示终端,用于显示音频分析仪的分析数据。一种听诊器检测方法,包括以下步骤：人工嘴向听诊器探头输入声音；人工耳从听诊器耳塞接收声音；音频分析仪接收人工耳输出的声音信号并进行音频分析得出声压级和失真率；显示终端显示音频分析仪的分析数据。(The invention discloses a stethoscope detection device, which is characterized in that: the method comprises the following steps: an artificial mouth for inputting sound to the stethoscope probe; an artificial ear for receiving sound from the stethoscope ear plug and transmitting a sound signal to the audio analyzer; the audio analyzer is in data connection with the artificial mouth and the artificial ear and is used for receiving the sound signal output by the artificial ear and carrying out audio analysis to obtain a sound pressure level and a distortion rate; and the display terminal is used for displaying the analysis data of the audio analyzer. A stethoscope detection method, comprising the steps of: inputting sound to a stethoscope probe by a manual mouth; the artificial ear receives sound from the stethoscope ear plug; the audio analyzer receives the sound signal output by the artificial ear and performs audio analysis to obtain a sound pressure level and a distortion rate; the display terminal displays the analysis data of the audio analyzer.)

1. A stethoscope testing device, characterized by: the method comprises the following steps:

an artificial mouth (1) for inputting sound to a stethoscope probe;

an artificial ear (2) for receiving sound from a stethoscope ear plug and transmitting a sound signal to an audio analyzer;

the audio analyzer (3) is in data connection with the artificial mouth (1) and the artificial ear (2) and is used for receiving the sound signal output by the artificial ear (2) and carrying out audio analysis to obtain a sound pressure level and a distortion rate;

and the display terminal (4) is used for displaying the analysis data of the audio analyzer (3).

2. The stethoscope detection device of claim 1, wherein: the audio analyzer (3) is also used for setting the frequency of the sound emitted by the artificial mouth (1).

3. The stethoscope detection device of claim 2, wherein: the audio analyzer (3) is also used for setting a plurality of frequencies for the artificial mouth (1), obtaining corresponding sound pressure level and distortion rate according to different frequencies, and establishing a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate.

4. The stethoscope detection device of any one of claims 1-3, wherein: the device also comprises a calibrator (5) for calibrating the artificial mouth (1) and the artificial ear (2).

5. The stethoscope detection device of any one of claims 1-3, wherein: still include anchor clamps (6), mutual isolation and syllable-dividing first cavity (7) and second cavity (8), artifical mouth (1) and artifical ear (2) are by anchor clamps (6) centre gripping and lie in first cavity (7) and second cavity (8) respectively.

6. A stethoscope detection method, comprising the steps of:

(a) inputting sound to a stethoscope probe by a manual mouth;

(b) the artificial ear receives sound from the stethoscope ear plug;

(c) the audio analyzer receives the sound signal output by the artificial ear and performs audio analysis to obtain a sound pressure level and a distortion rate;

(d) the display terminal displays the analysis data of the audio analyzer.

7. The stethoscope detection method of claim 6, wherein: the frequency of the sound emitted by the artificial mouth is set by the audio analyzer.

8. The stethoscope detection method of claim 7, wherein: the audio analyzer sets a plurality of sound frequencies for the artificial mouth, obtains corresponding sound pressure level and distortion rate according to different frequencies, and establishes a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate.

9. The stethoscope detection method according to any one of claims 6 to 8, wherein: the artificial mouth and the artificial ear are calibrated by the calibrator.

10. The stethoscope detection method according to any one of claims 6 to 8, wherein: the artificial mouth and the artificial ear are clamped by the clamp and are respectively arranged in the first cavity and the second cavity which are isolated from each other and are sound-proof.

Technical Field

The present disclosure relates to a detection device, and particularly to a stethoscope detection device and a stethoscope detection method.

Background

Now, a standard detecting device and a detecting method for a stethoscope, particularly an electronic stethoscope, are lacked, and the quality of the stethoscope is difficult to guarantee. In order to overcome the above-mentioned drawbacks, we have developed a stethoscope detection device and a stethoscope detection method.

Disclosure of Invention

The invention aims to provide a stethoscope detection device and a stethoscope detection method, which effectively solve the problems that the detection device and the detection method of the traditional stethoscope, particularly an electronic stethoscope, are not standard enough and the quality of the stethoscope is difficult to ensure.

The technical scheme adopted by the invention to solve the technical problem is as follows: a stethoscope testing device, characterized by: the method comprises the following steps:

an artificial mouth for inputting sound to the stethoscope probe;

an artificial ear for receiving sound from the stethoscope ear plug and transmitting a sound signal to the audio analyzer;

the audio analyzer is in data connection with the artificial mouth and the artificial ear and is used for receiving the sound signal output by the artificial ear and carrying out audio analysis to obtain a sound pressure level and a distortion rate;

and the display terminal is used for displaying the analysis data of the audio analyzer.

The audio analyzer is also used for setting the frequency of the sound emitted by the artificial mouth.

The audio analyzer is also used for setting a plurality of frequencies for the artificial mouth, obtaining corresponding sound pressure level and distortion rate according to different frequencies, and establishing a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate.

Also comprises a calibrator for calibrating the artificial mouth and the artificial ear.

Still include anchor clamps, mutual isolation and syllable-dividing first cavity and second cavity, artifical mouth and artifical ear are by anchor clamps centre gripping and lie in first cavity and second cavity respectively.

A stethoscope detection method, comprising the steps of:

a. inputting sound to a stethoscope probe by a manual mouth;

b. the artificial ear receives sound from the stethoscope ear plug;

c. the audio analyzer receives the sound signal output by the artificial ear and performs audio analysis to obtain a sound pressure level and a distortion rate;

d. the display terminal displays the analysis data of the audio analyzer.

The frequency of the sound emitted by the artificial mouth is set by the audio analyzer.

The audio analyzer sets a plurality of sound frequencies for the artificial mouth, obtains corresponding sound pressure level and distortion rate according to different frequencies, and establishes a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate.

The artificial mouth and the artificial ear are calibrated by the calibrator.

The artificial mouth and the artificial ear are clamped by the clamp and are respectively arranged in the first cavity and the second cavity which are isolated from each other and are sound-proof.

The invention has the beneficial effects that:

the invention adopts the technical scheme, and the stethoscope detection equipment is characterized in that: the method comprises the following steps: an artificial mouth for inputting sound to the stethoscope probe; an artificial ear for receiving sound from the stethoscope ear plug and transmitting a sound signal to the audio analyzer; the audio analyzer is in data connection with the artificial mouth and the artificial ear and is used for receiving the sound signal output by the artificial ear and carrying out audio analysis to obtain a sound pressure level and a distortion rate; and the display terminal is used for displaying the analysis data of the audio analyzer. When detecting the stethoscope, fix the probe of stethoscope on the loudspeaker of artifical mouth, connect the earplug of stethoscope to artifical ear, artifical mouth is to stethoscope probe input sound, and artifical ear is followed the stethoscope earplug and is received sound, and audio analysis appearance receives the sound signal of artifical ear output and carries out audio analysis and reachs sound pressure level and distortion rate, and display terminal shows audio analysis appearance's analysis data. The stethoscope detection equipment is simple in structure, accurate and standard in detection, and ensures the quality of the stethoscope, particularly the electronic stethoscope. The audio analyzer is also used for setting the frequency of the sound emitted by the artificial mouth. This allows accurate analysis of the sound pressure level and distortion rate for a particular frequency. The audio analyzer is also used for setting a plurality of frequencies for the artificial mouth, obtaining corresponding sound pressure level and distortion rate according to different frequencies, and establishing a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate. Therefore, the sound pressure level and the distortion rate, the sound pressure level/frequency relation curve and the distortion rate/frequency relation curve can be measured by a point-by-point method or a frequency sweeping method, and data can be intuitively and quickly acquired by the curves. Also comprises a calibrator for calibrating the artificial mouth and the artificial ear. The calibration is carried out before the detection of the stethoscope, so that the detection is more accurate and reliable. Still include anchor clamps, mutual isolation and syllable-dividing first cavity and second cavity, artifical mouth and artifical ear are by anchor clamps centre gripping and lie in first cavity and second cavity respectively. Therefore, the stethoscope can detect under less noise interference, and the detection result is further ensured to be accurate and reliable.

A stethoscope detection method, comprising the steps of: a. inputting sound to a stethoscope probe by a manual mouth; b. the artificial ear receives sound from the stethoscope ear plug; c. the audio analyzer receives the sound signal output by the artificial ear and performs audio analysis to obtain a sound pressure level and a distortion rate; d. the display terminal displays the analysis data of the audio analyzer. The frequency of the sound emitted by the artificial mouth is set by the audio analyzer. The audio analyzer sets a plurality of sound frequencies for the artificial mouth, obtains corresponding sound pressure level and distortion rate according to different frequencies, and establishes a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate. The artificial mouth and the artificial ear are calibrated by the calibrator. The artificial mouth and the artificial ear are clamped by the clamp and are respectively arranged in the first cavity and the second cavity which are isolated from each other and are sound-proof.

Therefore, the invention can effectively solve the problems that the detection equipment and the detection method of the traditional stethoscope, particularly the electronic stethoscope, are not standard enough and the quality of the stethoscope is difficult to ensure, and has the characteristics of simple structure, convenient use, beautiful appearance and durability.

Drawings

Fig. 1 is a schematic structural diagram of a stethoscope detection device of the present invention.

Fig. 2 is a schematic diagram of the steps of the stethoscope detection method according to the present invention.

Fig. 3 is a graph of sound pressure level/frequency relationship according to the present invention.

Fig. 4 is a graph of the rate-distortion/frequency relationship according to the present invention.

Detailed Description

Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.

Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.

The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.

Referring to fig. 1, a stethoscope detection device, characterized in that: the method comprises the following steps:

an artificial mouth 1 for inputting sound to a stethoscope probe;

an artificial ear 2 for receiving sound from the stethoscope ear plug and transmitting a sound signal to the audio analyzer;

the audio analyzer 3 is in data connection with the artificial mouth 1 and the artificial ear 2 and is used for receiving the sound signals output by the artificial ear 2 and carrying out audio analysis to obtain a sound pressure level and a distortion rate;

and the display terminal 4 is used for displaying the analysis data of the audio analyzer 3.

When detecting the stethoscope, fix the probe of stethoscope on the loudspeaker of artifical mouth 1, connect artifical ear 2 with the earplug of stethoscope, artifical mouth 1 is to stethoscope probe input sound, and artifical ear 2 receives sound from the stethoscope earplug, and audio analysis appearance 3 receives the sound signal of artifical ear 2 output and carries out audio analysis and reachs sound pressure level and distortion rate, and display terminal 4 shows audio analysis appearance 3's analytic data. The stethoscope detection equipment is simple in structure, accurate and standard in detection, and ensures the quality of the stethoscope, particularly the electronic stethoscope.

The audio analyzer 3 is also used to set the frequency of the sound emitted by the artificial mouth 1. This allows accurate analysis of the sound pressure level and distortion rate for a particular frequency.

The audio analyzer 3 is further configured to set a plurality of frequencies for the artificial mouth 1, obtain corresponding sound pressure levels and distortion rates according to the different frequencies, and establish a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure levels and the distortion rates. Therefore, the sound pressure level and the distortion rate can be measured by using a point-by-point method or a frequency sweeping method, and data can be intuitively and quickly acquired by using a curve.

An aligner 5 for aligning the artificial mouth 1 and the artificial ear 2 is also included. The calibration is carried out before the detection of the stethoscope, so that the detection is more accurate and reliable.

Still include anchor clamps 6, mutual isolation and syllable-dividing first cavity 7 and second cavity 8, artifical mouth 1 and artifical ear 2 are by anchor clamps 6 centre gripping and lie in first cavity 7 and second cavity 8 respectively. Therefore, the stethoscope can detect under less noise interference, and the detection result is further ensured to be accurate and reliable.

Referring to fig. 2, a stethoscope detection method includes the steps of:

a. inputting sound to a stethoscope probe by a manual mouth;

b. the artificial ear receives sound from the stethoscope ear plug;

c. the audio analyzer receives the sound signal output by the artificial ear and performs audio analysis to obtain a sound pressure level and a distortion rate;

d. the display terminal displays the analysis data of the audio analyzer.

The frequency of the sound emitted by the artificial mouth is set by the audio analyzer.

The audio analyzer sets a plurality of sound frequencies for the artificial mouth, obtains corresponding sound pressure level and distortion rate according to different frequencies, and establishes a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve according to the frequencies, the sound pressure level and the distortion rate. The audio analyzer selects a plurality of frequencies to measure the sound pressure level and the distortion rate by using a point-by-point method or a frequency sweep method within the range of 100Hz to 1000Hz, and obtains data intuitively and quickly according to a sound pressure level/frequency relation curve and a distortion rate/frequency relation curve, as shown in fig. 3 and 4.

The artificial mouth and the artificial ear are calibrated by the calibrator. The sound pressure level of the output of the calibrator was 94 dB.

The artificial mouth and the artificial ear are clamped by the clamp and are respectively arranged in the first cavity and the second cavity which are isolated from each other and are sound-proof.

When the amplification gain of the stethoscope is set to be maximum, and the audio analyzer 3 detects that the maximum output sound pressure level of the stethoscope is less than or equal to 132dB, the output sound pressure level item of the stethoscope is qualified.

The total harmonic distortion of the stethoscope is not more than 3 percent, and the stethoscope is qualified.

The stethoscope is adjusted to maximum gain, the stethoscope output sound signal is recorded, and the total harmonic distortion can be expressed as:

in the formula:

THD-Total harmonic distortion;

p 1-sound pressure of fundamental wave of output acoustic signal;

p2, p3, p4 … pn are sound pressures of 2 nd, 3 rd, 4 th … n th harmonic components, respectively.

Preferably, the audio analyzer analyzes and displays whether the stethoscope is qualified or not by the display terminal.

The stethoscope has the advantages of simple structure, convenience in use, attractiveness and durability, and can effectively solve the problems that the detection equipment and the detection method of the traditional stethoscope, particularly the electronic stethoscope, are not standard enough and the quality of the stethoscope is difficult to guarantee.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.